Hall-s board book presents cheerful evidence that Halloween tricks and treats-and sights and sounds-aren-t just for big kids. Followed by a black kitten, Little Pumpkin, a broadly smiling toddler wearing a soft-shaped pumpkin hat and toting a tiny goody bag, moves through -the spooky house- searching for treats. As the duo explores behind the -swishy, swooshy curtains,- up the -creaky stairs,- and under the -squeaky bed,- Little Franken, Little Bat, and Little Ghost emerge to join the party. Together, the toddling trick-or-treaters summon the courage to find out -what is behind the spooky-wooky door.- The answer, presented in a smiling skull bowl, garners a glad -Hooray, hooray!- from the diverse crew. Ample white background space on the sturdy pages keeps the proceedings age-appropriately bright. Ages up to 4. (Sept.)